Research Abstracts

Heavy oil was recovered from contaminated sand through capillary suction into exfoliated graphite with different packed densities by using model sands, alumina powders, with different particle sizes. For efficient recovery it was important to have an appropriate combination of average size of sand p

The investigation was undertaken to evaluate the effectiveness of using activated carbon (AC) in conjunction with ultrafiltration (UF) in the removal of methylene blue (MB) from aqueous solutions. The combination of activated carbon with UF in this work was to exploit the high adsorption capabilitie

Fouling characteristics of membranes with various molecular weight cut-offs (MWCO) were investigated. The effects of the molecular weights (MW) of humic acids and pre-treatment with PAC on membrane fouling were studied. It was found that the hydraulic resistance caused by fouling materials calculate

Transport phenomena in Nafion-117 perfluorosulphonic membranes have been studied by different techniques. Membrane electric conductivity has been measured under alternative current as a function of the equilibrating concentrations of MCl (M = Li, Na, K) and HCl solutions. Conductivities were found t

In China, many water supplies depend on conventional water treatment. Due to unfit soil and water conservation in some regions of China, conventional water treatment has showed some defects for the poor quality of water resource. In addition, advances in membrane technology and increasing requiremen

Zeolite was used as a low-cost adsorbent to evaluate its ability to remove color from textile effluents. The zeolite (clinoptilolite) used in this study is a natural clay mineral from the Gördes region of Turkey. The adsorption of reactive dyes into zeolite was investigated by a series of batch adso

A novel process was developed to repeatedly utilize MgNH4PO4·6H2O (MAP) for ammonium removal from wastewater by releasing ammonium in MAP through acid dipping. In acid solutions, ammonium can be released to solution from MAP while MAP was transformed to MgHPO4, which can be used to remove ammonium a

Increasing the fluid velocity in cross-flow membrane ultrafilter has two conflicting effects: one, the decrease in concentration polarization resistance, which is good for ultrafiltration; while the other, the decrease in average transmembrane pressure is bad for performance. Along the flow channel

The direct per capita availability of freshwater resources decreases as the world population continues its growth. This fact threatens the well-being and subsequently the survival of humanity as a whole. In this article, the North–South approach is used to raise certain questions on the significance

Fine particles of photocatalytic anatase TiO2 prepared through hydrolysis of titanium tetraisopropoxide were coated by carbon. A reduced phase, Ti4O7, was formed through interaction between TiO2 and the coating carbon. EXAFS analysis on this Ti4O7 phase showed an intermediate Ti–Ti distance between